A multi-electrode gas shielded arc welding device based on PLC for machining mechanical parts

Abstract

The application discloses a kind of based on PLC's mechanical piece processing with multi-electrode gas shielded arc welding device, including workbench, one end of workbench side is equipped with storage compartment, the two sides of inner wall of storage compartment are equipped with male slide groove, the inner wall of two male slide grooves is respectively slidably connected with the male slide strip of the middle part of arc welding machine main body two ends, the mechanical piece can be fixed by the manual clamp seat on movable clamping plate and fixed clamping plate, the calibration docking of mechanical piece can be completed by second electric hydraulic cylinder driving movable clamping plate, the alignment welding of mechanical piece is guaranteed, driving rack on movable clamping plate follows movement, driving rack connected limit slide block slides in the limit slide groove of push rod, first electric hydraulic cylinder acts push rod to make two driving rack drive rotating gear, i.e., the synchronous rotation of two manual clamp seats can be completed, the synchronous turnover to mechanical piece is guaranteed, the overall welding of device to mechanical piece can be guaranteed, and welding quality is improved.

Description

Technical Field

[0001] This invention relates to the field of arc welding equipment technology, and in particular to a multi-electrode gas shielded arc welding device for machining mechanical parts based on PLC. Background Technology

[0002] Gas shielded arc welding was developed during World War II and is still used in various industries. Gas shielded arc welding is an arc welding process that uses gas as a protective medium. It can meet the welding needs of different metals. In the processing of mechanical parts, multi-electrode gas shielded arc welding equipment is required to weld the mechanical parts.

[0003] In response to this, Chinese Patent No. CN201911280342.2 proposes a multi-electrode gas-shielded arc welding device for refining. The device utilizes a winding assembly to wind the used wires of the arc welding machine body, facilitating wire storage and subsequent use, reducing the risk of loss. Furthermore, the winding assembly is labor-saving during both winding and unwinding, simplifying the process for the user. The support assembly provides support and cushioning to the arc welding machine body, preventing tipping due to vibrations in the working environment, thus significantly improving the stability of the arc welding machine and reducing the risk of tipping over. The multi-electrode gas-shielded arc welding device described in the aforementioned patent...

[0004] (1) The multi-electrode gas shielded arc welding device in the above patent does not have an auxiliary clamping mechanism. When using the device to weld mechanical parts, the mechanical parts need to be fixed. Without an auxiliary clamping mechanism, it is difficult to align and calibrate the mechanical parts, resulting in inconvenience in welding. Furthermore, it is impossible to synchronously flip the mechanical parts, making it difficult to fully weld the mechanical parts and affecting the welding quality.

[0005] (2) The multi-electrode gas shielded arc welding device in the above patent does not have a material guiding mechanism. After welding is completed, the welded mechanical parts still need to be manually transferred. The lack of a material guiding mechanism makes it impossible for personnel to adjust the material guiding mechanism to export the welded mechanical parts according to the needs, which is not conducive to the operation of personnel and affects the welding efficiency.

[0006] (3) The multi-electrode gas shielded arc welding device in the above patent has a wire guiding function. The device needs to supply welding wire when welding. Without the wire guiding function, the personnel cannot adjust the direction of the welding wire, which causes the welding wire to affect the operation of the device and is not conducive to the use of personnel.

[0007] Therefore, we propose a PLC-based multi-electrode gas shielded arc welding device for machining mechanical parts to solve the problems mentioned above. Summary of the Invention

[0008] The purpose of this invention is to provide a PLC-based multi-electrode gas shielded arc welding device for machining mechanical parts, so as to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a multi-electrode gas shielded arc welding device for machining mechanical parts based on PLC, comprising a workbench, a storage chamber being provided at one end of one side of the workbench, convex sliding grooves being provided on both sides of the inner wall of the storage chamber, the inner walls of the two convex sliding grooves being slidably connected to convex sliding strips provided in the middle of both ends of the arc welding machine body, and movable casters being fixedly provided at the four corners of the bottom end of the arc welding machine body;

[0010] A material discharge port is provided at the center of the top of the workbench. Both sides of the inner wall of the discharge port are hinged with buffer doors via connecting hinges. Multiple support springs are fixed to one side of each buffer door, and one end of each support spring is fixedly connected to the top of the inner wall of the workbench. A fixed clamping plate is fixed to one side of the center of the top of the workbench. A second electric hydraulic cylinder is mounted on a mounting plate located at the center of one side of the workbench. The output end of the second electric hydraulic cylinder is fixedly connected to the bottom of one side of the movable clamping plate. Movable plates are fixed to both ends of the movable clamping plate. A sliding hole on one side of each movable plate is slidably connected to one side of the outer wall of a corresponding slide rod. Both ends of each slide rod are fixedly connected to the surface of the top of the workbench via connecting ears. The inner rings of connecting bearings embedded in the center of one side of the fixed clamping plate and the center of one side of the movable clamping plate are fixed. The device includes a rotating shaft, one end of which is fixedly connected to one end of a corresponding manual clamp, and the other end of which is fixedly connected to one end of a corresponding rotating gear. The bottom end of each rotating gear meshes with one side of the top of a corresponding drive rack. A limiting sleeve is fixedly provided at one end of the fixed clamp and one end of the movable clamp. The inner walls of the two limiting sleeves are respectively inserted and connected to the middle of the outer walls of the two drive racks. One end of one drive rack is fixedly connected to one side of a push rod. A limiting slide groove opened in the middle of one side of the push rod is slidably connected to a limiting slider provided at one end of the other drive rack. The middle of the other end of the push rod is fixedly connected to the output end of a first electric hydraulic cylinder. The first electric hydraulic cylinder is installed on one side of the top of the worktable via a pad. A control box is fixedly provided at one corner of the top of the worktable.

[0011] Preferably, a first electric slide rail is installed on the other side of the top of the workbench, a support column is fixedly provided at the moving end of the first electric slide rail, a second electric slide rail is installed at the top of the support column, the moving end of the second electric slide rail is fixedly connected to the top of the inner wall of the translation frame, and a third electric hydraulic cylinder is installed at the bottom of the inner wall of the translation frame.

[0012] Preferably, the output end of the third electric hydraulic cylinder is fixedly connected to one side of the top of the adjusting frame, the inner wall of the adjusting frame is inserted and connected to the middle of the outer wall of the welding gun, an adjusting knob is threaded into the adjusting hole on one side of the adjusting frame, and a wire guide frame is fixedly provided on the other side of the adjusting frame.

[0013] Preferably, one side of the bottom end of the inner wall of the workbench is hinged to the bottom end of the electric telescopic rod via a movable hinge, the output end of the electric telescopic rod is hinged to the middle of the bottom end of one of the fixed frames via a movable hinge, the inner ring of the limiting bearing embedded on one side of the inner wall of the workbench is fixedly connected to one side of the outer wall of the connecting shaft, one end of the connecting shaft is fixedly connected to one end of another fixed frame, the inner walls of the two fixed frames are respectively fixedly connected to both sides of the outer wall of the I-beam, and a drive motor is installed at one end of one side of the I-beam.

[0014] Preferably, fixed bearings are embedded at both ends of the inner wall of the I-beam frame, and the inner rings of each pair of fixed bearings are fixedly connected to both sides of the outer wall of the corresponding conveyor roller. The two conveyor rollers are connected by a conveyor belt, and one end of one of the conveyor rollers is fixedly connected to the output end of the drive motor.

[0015] Preferably, a baffle is fixedly provided on one side of the top of the I-beam frame, and a plurality of buffer springs are fixedly provided on one side of the baffle, with one end of each of the plurality of buffer springs being fixedly connected to the surface of one side of the buffer plate.

[0016] Preferably, two support frames are fixedly provided at the other corner of the top of the workbench. One end of each of the two support frames is fixedly connected to both ends of one side of the wire feeder. The inner ring of the movable bearing embedded in the middle of the other side of the wire feeder is fixedly connected to one side of the outer wall of the rotating column. The middle of the outer wall of the rotating column is inserted and connected to the inner wall of the welding wire reel. The other side of the outer wall of the rotating column is threadedly connected to the inner wall of the disassembly and assembly screw ring. A protective cover is fixedly provided on the side of the other side of the wire feeder, and a wire feeder is installed at one end of the other side of the wire feeder.

[0017] Preferably, one side of the top of the wire feeder is hinged to one end of the wire guide rod via a rotating hinge, the middle part of the bottom end of the wire guide rod is hinged to the output end of the damping rod via a rotating hinge, one end of the wire feeder is fixedly provided with a support plate, the top end of the support plate is hinged to the bottom end of the damping rod via a rotating hinge, and the other end of the wire guide rod and one end of the wire feeder are both fixedly provided with wire guide rings.

[0018] Preferably, a PLC controller is fixedly installed inside the control box. The PLC controller integrates a first electric slide rail control module, a first electric hydraulic cylinder control module, a second electric slide rail control module, a second electric hydraulic cylinder control module, a drive motor control module, an electric telescopic rod control module, and a third electric hydraulic cylinder control module. The first electric slide rail, the first electric hydraulic cylinder, the second electric slide rail, the second electric hydraulic cylinder, the drive motor, the electric telescopic rod, and the third electric hydraulic cylinder are electrically connected to an external power supply through the first electric slide rail control module, the first electric hydraulic cylinder control module, the second electric slide rail control module, the second electric hydraulic cylinder control module, the drive motor control module, the electric telescopic rod control module, and the third electric hydraulic cylinder control module, respectively.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] (1) The mechanical parts can be fixed by the manual clamps on the movable clamp and the fixed clamp. The second electric hydraulic cylinder drives the movable clamp to complete the calibration and docking of the mechanical parts, ensuring the alignment and welding of the mechanical parts. The drive rack on the movable clamp moves with it. The limit slider connected to the drive rack slides in the limit groove opened by the push rod. The first electric hydraulic cylinder acts on the push rod to drive the two drive racks to drive the rotating gear, which can complete the synchronous rotation of the two manual clamps, ensuring the synchronous flipping of the mechanical parts, ensuring the comprehensive welding of the mechanical parts by the device, and improving the welding quality.

[0021] (2) A drive motor is connected to the conveyor roller inside the I-beam frame. The conveyor roller is connected by a conveyor belt. One of the fixed frames connected to the I-beam frame is connected to the connecting shaft connected to the worktable. The other fixed frame is hinged to an electric telescopic rod. The baffle on the I-beam frame is connected to the buffer plate through a buffer spring. This allows the arc welding device to have a material guiding mechanism. After the mechanical parts are welded, they can fall from the buffer door and be guided by the material guiding mechanism. At the same time, the angle of the material guiding mechanism can be adjusted to change the unloading position, making it more convenient for personnel to operate and improving welding efficiency.

[0022] (3) The rotating column connected by the wire feeder is interlocked with the wire reel. The rotating column is threadedly connected to the assembly and disassembly screw ring. The wire feeder is hinged to the guide rod and the damping rod. The adjustment frame is connected to the guide frame. The guide rod and the guide frame are both connected to the guide ring, which enables the arc welding device to have the function of guiding the wire. Personnel can adjust the direction of the welding wire according to their needs to avoid the welding wire affecting the operation of the device, making it more convenient for personnel to use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a partial structural diagram of the present invention;

[0025] Figure 3 This is a schematic diagram of the auxiliary clamping mechanism of the present invention;

[0026] Figure 4 This is a schematic diagram of the welding mechanism of the present invention;

[0027] Figure 5 This is a schematic diagram of the connection structure of the adjustment frame of the present invention;

[0028] Figure 6 This is a schematic diagram of the connection structure of the main body of the arc welding machine of the present invention;

[0029] Figure 7 This is a schematic diagram of the material guiding mechanism of the present invention;

[0030] Figure 8 This is a schematic diagram of the wire feeding mechanism of the present invention;

[0031] Figure 9 This is a schematic diagram of the connection structure of the guide rod of the present invention.

[0032] In the diagram: 1. Workbench; 2. Storage chamber; 3. Convex slide rail; 4. Arc welding machine body; 5. I-beam frame; 6. First electric slide rail; 7. Support frame; 8. Wire feeder; 9. Control box; 10. First electric hydraulic cylinder; 11. Convex slide bar; 12. Support column; 13. Second electric slide rail; 14. Translation frame; 15. Buffer door; 16. Conveyor roller; 17. Conveyor belt; 18. Fixed clamping plate; 19. Second electric hydraulic cylinder; 20. Movable clamping plate; 21. Moving plate; 22. Slide rod; 23. Rotating shaft; 24. Manual clamping seat; 25. 26. Rotating gear; 27. Drive rack; 28. Limit sleeve; 29. ​​Limit slider; 30. Push rod; 31. Limit groove; 32. Movable caster; 33. Fixed frame; 34. Drive motor; 35. Electric telescopic rod; 36. Third electric hydraulic cylinder; 37. Adjusting frame; 38. Welding torch; 39. Wire guide frame; 40. Baffle; 41. Buffer spring; 42. Buffer plate; 43. Rotating column; 44. Welding wire reel; 45. Disassembly and assembly screw ring; 46. Protective cover; 47. Wire feeder; 48. Wire guide rod; 49. Damping rod; 40. Wire guide ring. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1-9This invention provides a technical solution: a PLC-based multi-electrode gas-shielded arc welding device for machining mechanical parts, comprising a worktable 1, a storage chamber 2, a convex slide rail 3, an arc welding machine body 4, an I-beam frame 5, a first electric slide rail 6, a support frame 7, a wire feeder 8, a control box 9, a first electric hydraulic cylinder 10, a convex slide bar 11, a support column 12, a second electric slide rail 13, a translation frame 14, a buffer door 15, a conveyor roller 16, a conveyor belt 17, a fixed clamping plate 18, a second electric hydraulic cylinder 19, a movable clamping plate 20, a moving plate 21, a slide bar 22, a rotating shaft 23, a manual clamping seat 24, a rotating gear 25, a drive rack 26, a limit sleeve 27, a limit slider 28, a push rod 29, and a limit... The components include a sliding groove 30, movable casters 31, a fixed frame 32, a drive motor 33, an electric telescopic rod 34, a third electric hydraulic cylinder 35, an adjusting frame 36, a welding torch 37, a wire guide frame 38, a baffle 39, a buffer spring 40, a buffer plate 41, a rotating column 42, a welding wire reel 43, a disassembly and assembly screw ring 44, a protective cover 45, a wire feeder 46, a wire guide rod 47, a damping rod 48, and a wire guide ring 49. A storage chamber 2 is provided at one end of one side of the workbench 1. Both sides of the inner wall of the storage chamber 2 are provided with convex sliding grooves 3. The inner walls of the two convex sliding grooves 3 are slidably connected to the convex sliding strips 11 provided in the middle of both ends of the arc welding machine body 4. Movable casters 31 are fixed at the four corners of the bottom end of the arc welding machine body 4.

[0035] A material discharge port is provided at the center of the top of the workbench 1. Both sides of the inner wall of the discharge port are hinged with buffer doors 15 via connecting hinges. Multiple support springs are fixedly installed on one side of each buffer door 15, with one end of each support spring fixedly connected to the top of the inner wall of the workbench 1. A fixed clamping plate 18 is fixedly installed on one side of the center of the top of the workbench 1. A second electric hydraulic cylinder 19 is mounted on a mounting plate located at the center of one side of the workbench 1. The output end of the second electric hydraulic cylinder 19 is fixedly connected to the bottom of one side of the movable clamping plate 20. Moving plates 21 are fixedly installed at both ends of the movable clamping plate 20. A sliding hole on one side of each moving plate 21 is slidably connected to one side of the outer wall of the corresponding sliding rod 22. Both ends of each sliding rod 22 are fixedly connected to the surface of the top of the workbench 1 via connecting ears. A rotating shaft 23 is fixedly installed in the inner ring of the connecting bearing embedded at the center of one side of the fixed clamping plate 18 and the center of one side of the movable clamping plate 20. One end of each rotating shaft 23 is fixedly connected to one end of the corresponding manual clamp 24, and the other end of each rotating shaft 23 is fixedly connected to one end of the corresponding rotating gear 25. The bottom end of each rotating gear 25 meshes with one side of the top end of the corresponding drive rack 26. One end of the fixed clamp 18 and one end of the movable clamp 20 are fixedly provided with a limiting sleeve 27. The inner walls of the two limiting sleeves 27 are respectively inserted and connected to the middle of the outer walls of the two drive racks 26. One end of one drive rack 26 is fixedly connected to one side of one end of the push rod 29. The limiting slide groove 30 opened in the middle of one side of the push rod 29 is slidably connected to the limiting slider 28 provided in one end of the other drive rack 26. The middle of the other end of the push rod 29 is fixedly connected to the output end of the first electric hydraulic cylinder 10. The first electric hydraulic cylinder 10 is installed on one side of the top of the workbench 1 through a pad. A control box 9 is fixedly provided at one corner of the top of the workbench 1.

[0036] like Figures 1-5 As shown, a first electric slide rail 6 is installed on the other side of the top of the workbench 1. A support column 12 is fixedly provided at the moving end of the first electric slide rail 6. A second electric slide rail 13 is installed at the top of the support column 12. The moving end of the second electric slide rail 13 is fixedly connected to the top of the inner wall of the translation frame 14. A third electric hydraulic cylinder 35 is installed at the bottom of the inner wall of the translation frame 14. The output end of the third electric hydraulic cylinder 35 is fixedly connected to one side of the top of the adjustment frame 36. The inner wall of the adjustment frame 36 is inserted and connected to the middle of the outer wall of the welding torch 37. An adjustment knob is threaded into the adjustment hole opened on one side of the adjustment frame 36. A wire guide frame 38 is fixedly provided on the other side of the adjustment frame 36.

[0037] like Figures 1-3 and Figure 7As shown, one side of the bottom of the inner wall of the workbench 1 is hinged to the bottom of the electric telescopic rod 34 via a movable hinge. The output end of the electric telescopic rod 34 is hinged to the middle of the bottom of one of the fixed frames 32 via a movable hinge. The inner ring of the limit bearing embedded on one side of the inner wall of the workbench 1 is fixedly connected to one side of the outer wall of the connecting shaft. One end of the connecting shaft is fixedly connected to one end of another fixed frame 32. The inner walls of the two fixed frames 32 are respectively fixedly connected to both sides of the outer wall of the I-beam 5. A drive motor 33 is installed on one side of the I-beam 5. Fixed bearings are embedded at both ends of both sides of the inner wall of the I-beam 5. The inner rings of each pair of fixed bearings are fixedly connected to both sides of the outer wall of the corresponding conveyor roller 16. The two conveyor rollers 16 are connected by a conveyor belt 17. One end of one conveyor roller 16 is fixedly connected to the output end of the drive motor 33. A baffle 39 is fixedly installed on one side of the top of the I-beam 5. Multiple buffer springs 40 are fixedly installed on one side of the baffle 39. One end of each buffer spring 40 is fixedly connected to the surface of one side of the buffer plate 41.

[0038] like Figures 1-2 and Figures 8-9 As shown, two support frames 7 are fixedly installed at the other corner of the top of the workbench 1. One end of each support frame 7 is fixedly connected to both ends of one side of the wire feeder 8. The inner ring of the movable bearing embedded in the middle of the other side of the wire feeder 8 is fixedly connected to one side of the outer wall of the rotating column 42. The middle of the outer wall of the rotating column 42 is inserted into the inner wall of the welding wire reel 43. The other side of the outer wall of the rotating column 42 is threadedly connected to the inner wall of the disassembly and assembly screw ring 44. A protective cover 45 is fixedly installed on the side of the other side of the wire feeder 8, and a wire feeder 46 is installed at one end of the other side of the wire feeder 8. One side of the top of the wire feeder 8 is hinged to one end of the guide rod 47 via a rotating hinge. The middle of the bottom end of the guide rod 47 is hinged to the output end of the damping rod 48 via a rotating hinge. A support plate is fixedly installed at one end of the wire feeder 8. The top of the support plate is hinged to the bottom end of the damping rod 48 via a rotating hinge. The guide rod 47 is... The other end of 7 and one end of the wire guide frame 38 are both fixedly provided with wire guide rings 49. A PLC controller is fixedly provided in the control box 9. The PLC controller integrates a first electric slide rail control module, a first electric hydraulic cylinder control module, a second electric slide rail control module, a second electric hydraulic cylinder control module, a drive motor control module, an electric telescopic rod control module, and a third electric hydraulic cylinder control module. The first electric slide rail 6, the first electric hydraulic cylinder 10, the second electric slide rail 13, the second electric hydraulic cylinder 19, the drive motor 33, the electric telescopic rod 34, and the third electric hydraulic cylinder 35 are respectively electrically connected to an external power supply through the first electric slide rail control module, the first electric hydraulic cylinder control module, the second electric slide rail control module, the second electric hydraulic cylinder control module, the drive motor control module, the electric telescopic rod control module, and the third electric hydraulic cylinder control module.

[0039] The working principle of this embodiment is as follows: Figures 1-5As shown, during the welding of mechanical parts, the operator can fix the mechanical parts by operating the manual clamp 24 connected to the rotating shaft 23. Then, the PLC controller in the control box 9 controls the second electric hydraulic cylinder 19 to drive the movable clamp 20. The movable plate 21 connected to the movable clamp 20 slides on the slide rod 22. At this time, the limit sleeve 27 on the movable clamp 20 drives the rack 26, so that the limit slider 28 connected to the drive rack 26 slides in the limit slide groove 30 opened in the push rod 29. Under the action of the second electric hydraulic cylinder 19, the mechanical parts can be aligned, aligned and pressed. Then, the welding mechanism is controlled by the PLC controller. The first electric slide rail 6 drives the support column 12, and the second electric slide rail 13 on the support column 12 moves accordingly. The slide rail 13 drives the translation frame 14 to move, which in turn drives the third electric hydraulic cylinder 35 to move, so that the welding torch 37 is aligned with the welding position of the mechanical part. The third electric hydraulic cylinder 35 drives the adjustment frame 36, and the end of the welding torch 37 on the adjustment frame 36 can contact the welding position of the mechanical part. The arc welding machine body 4 can be opened to weld the mechanical part. After welding is completed, the welding torch 37 is lifted, the first electric hydraulic cylinder 10 acts on the push rod 29, the push rod 29 can act on the two drive racks 26, and the two drive racks 26 can act on the two rotating gears 25 at the same time, so that the manual clamp 24 connected by the two rotating shafts 23 can rotate synchronously, which can flip the mechanical part. After the mechanical part is flipped, the welding torch 37 falls again to weld the mechanical part, thus completing the full welding of the mechanical part.

[0040] like Figures 1-3 and Figure 7 As shown, after the mechanical parts are welded, the second electric hydraulic cylinder 19 drives the movable clamping plate 20, which causes the mechanical parts to fall. The mechanical parts fall onto the buffer door 15, which is connected to a support spring. The buffer door 15 falls under the gravity of the mechanical parts, and the mechanical parts fall onto the conveyor belt 17 of the material guiding mechanism. The operator controls the electric telescopic rod 34, which acts on one of the fixed frames 32. The connecting shaft of the other fixed frame 32 is connected to the limit bearing on the worktable 1, which can change the angle of the I-beam 5, thereby adjusting the unloading position of the material guiding mechanism. The drive motor 33 is turned on, and the drive motor 33 acts on the conveyor roller 16, which causes the conveyor belt 17 to convey the mechanical parts. The baffle 39 is connected to the buffer plate 41 through the buffer spring 40, which can block the mechanical parts and ensure the conveying of the mechanical parts.

[0041] like Figures 1-2 and Figures 8-9As shown, when the device is in use, the welding wire on the welding wire reel 43 is unwound and passes through the wire feeder 46. The welding wire passes through the wire guide ring 49 connected to the wire guide rod 47, and then passes through the wire guide ring 49 connected to the wire guide frame 38, thus completing the wire feeding of the welding gun 37. The wire feeder 8 is hinged to the wire guide rod 47, and the wire guide rod 47 is hinged to the damping rod 48. The angle can be changed by pulling the end of the wire guide rod 47, which facilitates the adjustment of the welding wire direction.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A PLC-based multi-electrode gas-shielded arc welding device for machining mechanical parts, comprising a workbench (1), a storage chamber (2) is provided at one end of one side of the workbench (1), and convex grooves (3) are provided on both sides of the inner wall of the storage chamber (2). The inner walls of the two convex grooves (3) are slidably connected to convex sliding strips (11) provided at the middle of both ends of the arc welding machine body (4), and movable casters (31) are fixed at the four corners of the bottom end of the arc welding machine body (4). The device is characterized in that: A material discharge port is provided at the center of the top of the workbench (1). Both sides of the inner wall of the material discharge port are hinged with buffer doors (15). Multiple support springs are fixedly installed on one side of each buffer door (15), and one end of each support spring is fixedly connected to the top of the inner wall of the workbench (1). A fixing plate (18) is fixedly installed on one side of the center of the top of the workbench (1). A second electric hydraulic cylinder (19) is installed on a mounting plate located at the center of one side of the workbench (1). The output end of the fixed clamp (20) is fixedly connected to the bottom of one side of the movable clamp (20). Both ends of the movable clamp (20) are fixedly provided with movable plates (21). The sliding hole opened on one side of each movable plate (21) is slidably connected to one side of the outer wall of the corresponding slide rod (22). Both ends of each slide rod (22) are fixedly connected to the surface of the top of the workbench (1) through connecting ears. The inner ring of the connecting bearing embedded in the middle of one side of the fixed clamp (18) and the middle of one side of the movable clamp (20) is fixedly provided with a rotating shaft (23). One end of each rotating shaft (23) is fixedly connected to one end of the corresponding manual clamp (24), and the other end of each rotating shaft (23) is fixedly connected to one end of the corresponding rotating gear (25). The bottom end of each rotating gear (25) meshes with one side of the top of the corresponding drive rack (26). One end of the fixed clamp (18) and one end of the movable clamp (20) are fixedly provided with a limiting sleeve (27). The inner walls of the two limiting sleeves (27) are respectively inserted and connected to the middle of the outer walls of the two drive racks (26). One end of the drive rack (26) is fixedly connected to one side of the push rod (29). The limiting groove (30) opened in the middle of one side of the push rod (29) is slidably connected to the limiting slider (28) provided at one end of the other drive rack (26). The middle of the other end of the push rod (29) is fixedly connected to the output end of the first electric hydraulic cylinder (10). The first electric hydraulic cylinder (10) is installed on one side of the top of the workbench (1) by a pad. A control box (9) is fixedly provided at one corner of the top of the workbench (1). Two support frames (7) are fixedly provided at the other corner of the top of the workbench (1). One end of the two support frames (7) is fixedly connected to the two ends of one side of the wire feeder (8). The inner ring of the movable bearing embedded in the middle of the other side of the wire feeder (8) is fixedly connected to one side of the outer wall of the rotating column (42). The middle of the outer wall of the rotating column (42) is inserted into the inner wall of the welding wire reel (43). The other side of the outer wall of the rotating column (42) is threadedly connected to the inner wall of the disassembly and assembly screw ring (44). A protective cover (45) is fixedly provided on the side of the other side of the wire feeder (8), and a wire feeder (46) is installed at one end of the other side of the wire feeder (8). One side of the top of the wire feeder (8) is hinged to one end of the wire guide rod (47) via a rotating hinge. The middle part of the bottom end of the wire guide rod (47) is hinged to the output end of the damping rod (48) via a rotating hinge. One end of the wire feeder (8) is fixedly provided with a support plate. The top end of the support plate is hinged to the bottom end of the damping rod (48) via a rotating hinge. The other end of the wire guide rod (47) and one end of the wire feeder (38) are both fixedly provided with wire guide rings (49). The control box (9) is equipped with a PLC controller. The PLC controller integrates a first electric slide rail control module, a first electric hydraulic cylinder control module, a second electric slide rail control module, a second electric hydraulic cylinder control module, a drive motor control module, an electric telescopic rod control module, and a third electric hydraulic cylinder control module. The first electric slide rail (6), the first electric hydraulic cylinder (10), the second electric slide rail (13), the second electric hydraulic cylinder (19), the drive motor (33), the electric telescopic rod (34), and the third electric hydraulic cylinder (35) are electrically connected to an external power supply through the first electric slide rail control module, the first electric hydraulic cylinder control module, the second electric slide rail control module, the second electric hydraulic cylinder control module, the drive motor control module, the electric telescopic rod control module, and the third electric hydraulic cylinder control module, respectively.

2. The multi-electrode gas shielded arc welding device for machining mechanical parts based on PLC according to claim 1, characterized in that: A first electric slide rail (6) is installed on the other side of the top of the workbench (1). A support column (12) is fixedly provided at the moving end of the first electric slide rail (6). A second electric slide rail (13) is installed at the top of the support column (12). The moving end of the second electric slide rail (13) is fixedly connected to the top of the inner wall of the translation frame (14). A third electric hydraulic cylinder (35) is installed at the bottom of the inner wall of the translation frame (14).

3. The multi-electrode gas-shielded arc welding device for machining mechanical parts based on PLC according to claim 2, characterized in that: The output end of the third electric hydraulic cylinder (35) is fixedly connected to one side of the top of the adjustment frame (36). The inner wall of the adjustment frame (36) is inserted and connected to the middle of the outer wall of the welding torch (37). An adjustment knob is threaded into the adjustment hole on one side of the adjustment frame (36). A wire guide frame (38) is fixedly provided on the other side of the adjustment frame (36).

4. The multi-electrode gas shielded arc welding device for machining mechanical parts based on PLC according to claim 2, characterized in that: One side of the bottom of the inner wall of the workbench (1) is hinged to the bottom of the electric telescopic rod (34) via a movable hinge. The output end of the electric telescopic rod (34) is hinged to the middle of the bottom of one of the fixed frames (32) via a movable hinge. The inner ring of the limiting bearing embedded on one side of the inner wall of the workbench (1) is fixedly connected to one side of the outer wall of the connecting shaft. One end of the connecting shaft is fixedly connected to one end of another fixed frame (32). The inner walls of the two fixed frames (32) are respectively fixedly connected to both sides of the outer wall of the I-beam frame (5). A drive motor (33) is installed on one end of one side of the I-beam frame (5).

5. The multi-electrode gas-shielded arc welding device for machining mechanical parts based on PLC according to claim 4, characterized in that: Fixed bearings are embedded at both ends of the inner wall of the I-beam frame (5). The inner rings of each pair of fixed bearings are fixedly connected to the outer walls of the corresponding conveyor rollers (16). The two conveyor rollers (16) are connected by a conveyor belt (17). One end of one of the conveyor rollers (16) is fixedly connected to the output end of the drive motor (33).

6. A multi-electrode gas-shielded arc welding device for machining mechanical parts based on PLC according to claim 5, characterized in that: A baffle (39) is fixedly provided on one side of the top of the I-beam (5), and a plurality of buffer springs (40) are fixedly provided on one side of the baffle (39), with one end of each buffer spring (40) being fixedly connected to the surface of one side of the buffer plate (41).

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